An air observer or aerial observer is an aircrew member whose duties are predominantly reconnaissance. The term originated in the British military during World War I.
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Aviacionavion.png
Sign based on photograph with front view of a Turkmenistan Airlines Boeing 757 landing at London Hea...
The US Air Force on the Western Front 1918-1919 Q72611.jpg
The US Air Force on the Western Front 1918-1919
Close-up of the pilot and observer in a Sopwith 1 1/...
USA - Balloon Observer WWI.png
United States Army Balloon Observer Wings from World War I. Made with Photoshop.